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Proof step 10 from proof countrefs2-pos (previous step)

¬ (ints0 ≠ [] ∧ 1 ≤ i), i ≤ 0, countrefs2(i ' + ints0) < 0, 0 ≤ countrefs2(ints0) ⊦ ints0 = []

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
i ≤ 0, countrefs2(i ' + ints0) < 0, 0 ≤ countrefs2(ints0) ⊦ ints0 = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ 0 ∧ 0 ≤ j → i ≤ j], [CSIMPSEQ : ⊦ ¬ i < j ↔ j ≤ i], [CSIMPSEQ : ⊦ 1 ≤ i ↔ 0 < i])]]